Preparation of Cu-CS@IN@MIL-100 (Fe) for controlled indoxacarb release and reduced non-target organism risks

文献类型： 外文期刊

第一作者： Shan, Yongpan

作者： Shan, Yongpan;Ma, Yajie;Wu, Changcai;Ren, Xiangliang;Song, Xianpeng;Wang, Dan;Hu, Hongyan;Ma, Xiaoyan;Ma, Yan;Shan, Yongpan;Wu, Changcai;Ren, Xiangliang;Hu, Hongyan;Ma, Xiaoyan;Ma, Yan;Shan, Yongpan;Ma, Yajie;Wu, Changcai;Ren, Xiangliang;Song, Xianpeng;Wang, Dan;Hu, Hongyan;Ma, Xiaoyan;Ma, Yan

作者机构：

关键词： Metal-organic framework; Chitosan; Controlled release; Persistent control efficacy; Non-target organism safety

期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.7； 五年影响因子：7.3 ）

ISSN： 2213-2929

年卷期： 2023 年 11 卷 3 期

页码：

收录情况： SCI

摘要： Control release of pesticides based on target plant characteristics is highly desirable for improving the effective utilization rate and reducing non-target organism risks. Here, the controlled release formulations (CuCS@IN@MIL-100 (Fe)) were successfully prepared by employing MIL-100 (Fe) as the carrier material, indoxacarb (IN) as the model pesticide, and chitosan (CS) as a coating to chelate copper ions by chemical crosslinking. The prepared Cu-CS@IN@MIL-100 (Fe) had an acceptable loading content (36.25 %). The introduction of CS and copper ions endowed it with sustained release properties under weak acidity conditions like cotton leaves. The laboratory bioassay experiments showed that Cu-CS@IN@MIL-100 (Fe) had practical good insecticidal activity (LC50 = 4.936 mg/L) in controlling Helicoverpa armigera larvae. For long-term control efficacy experiments, after 14 days of application, the Cu-CS@IN@MIL-100 (Fe) treatment (73 %) mortality of Helicoverpa armigera larvae was significantly higher than the 15 % indoxacarb suspension concentrates (SC) treatment (27 %). Moreover, CuCS@IN@MIL-100 (Fe) had no adverse effect on cottonseed germination and the acute toxicity to Chrysopa pallens larvae was significantly lower than IN SC. Therefore, MIL-100 (Fe) could be used as an ecological safety carrier for pesticide delivery to improve IN effective utilization and reduce non-target organism risks.

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